My Dad's built himself a PC, entirely, from scratch and it's a beauty
He was 70 this year, and he decided it was time to build the video editing machine of his dreams, himself and not with any help. He lives 250 miles away so I cant pop over!
He researched it, chose the components, ordered them, built it, and with only my input on a change of heat-sink and a cheap spare cheap gpu, he's done it entirely.
I remote accessed it yesterday and it's a perfect install, lightning fast and as clean as you like
An i7 5820, 16 gig of DDR4 (more later), a big quiet noctua cooler, Corsair Carbide 400 case...two SSD's and two 3 tb HDD's ....and although he's got a GTX570 in his old rig, he decided to buy a smaller GPU to get started before swapping the 570 over and got an EVGA 610.
All in all..... I'm proud of the old man
it's the PC I'd have built if I wanted that kinda muscle.